Method of forming imitation hand rift shingles



y 21, 1953 B. DENNISON 2,646,093

METHOD OF FORMING IMITATION HAND RIFT SHINGLES Filed Oct. 14, 194

2 5- I Lee Boa/72253)? ttorneg "lug 30 which raises the platform after the block 55 Patented July2l, 1953 UNITED,

- @1223 g li ht METHOD OF FORIVHNG IMITATION HAND RIFT SHIN GLE S Lee B. Dennison, Fernwood, Idaho Application October 14, 1948, Serial No. 54,401

2 Claims. (01. 144-309) My present invention relates to 'an improved method of forming imitation hand rift shingles rotary saw 38 whereupon the shake or shingle is cut or sawed from the block, one face thereand especially to the method of grooving the of being grooved, and the block continues to shingles along a part of their length only to simucurved conveyor it and belt 42 to curved conveyor late the hand split shingles, the appearance of 5 M from which it is returned to belt 2, the block which is desirable but .costly. having been turned 180 degrees upon its vertical According to my invention the squared block axis. The sequential movement follows as outcut from the tree is fed successively by a conlined above. veyor system past the grooving device, the sawing The sequence continues until the block is cut device, and then is returned to the grooving deto the uneven edge which is then squared on vice and follows the sequence until the block table it having a saw t8, and again placed on has been entirely out and each shingle grooved. belt 5.

In the accompanying drawings I have illus- By employing the apparatus described I am trated one complete example of the physical emenabled to carry out the process wherein the bodiment of my invention according to the best block is grooved p tia ly, the Shake is ut, and mode I have thus fardevised, but it will be underthe block reversed 180 degrees and then returned stood that various changes and alterations may to be grooved and ,cut. be made in the exemplified structure within the scope of the appended claims. I then cutting, the tendency resulting from the In th drawings: present method wherein the steps are reversed Fig. 1 is a plan view of the conveyor system to fray the thin edge of the shake is eliminated, employed in carrying out my method. and the desirable shake simulating hand split Fig. 2 is a sectional view at line 2-2 of Fig. 1 shakes is made with facility and ease. 1 showing the block-tilting mechanism for clear- Having t u u y d sc ibed my invention what ing the block of the grooving knife after the de- 5 I claim as new and desire to secure by Letters sired length groove has been cut. Patent is:

Fig 3 1 a perspective i of a bl k from 1. The process of forming imitation hand rift which shingles are cut. shingles comprising forming a block of wood hav- Fig. 4 is a perspective view of a shingle cut ing fiat upper and lower faces and side faces, from the block shown in Figure 3. v forming in one face of the block a multiplicity of Referring now to the drawings wherein I have grooves extending longitudinally of the block in illustrated the present preferred embodiment of side by side relation to each other, and then cutmy invention I employ a suitable belt conveyor 2 ting the block for its full length and Width in upon which are placed the blocks 4 of Wood which predetermined spaced relation to its grooved face normally are sawed square on all sides except and thereby removing from the block a strip conone. stituting shingle having a grooved surface.

These blocks e fed y the Conveyor belt 2 t0 2. The process of forming imitation hand rift co v y ii at right angles thereto and the blocks shingles comprising forming an elongated block are engaged by the endless chains 8 having teeth of wood having flat upper and lower faces and I0 moving the blocks Over platform l2 P V ted side faces, forming a multiplicity of grooves exat 14. While the blocks are be g d Over the tending longitudinally in the lower face of the p a f rm he rotary knives [6 which are mounted block in side by side relation to each other from on shaft 88 and extend t o h slot 28 in the one end of the block and terminating the grooves D a form grOOVeS 4a in the block 011 the in spaced relation to the other end of the block, under side, and in order to l m t t e grooving the and then cutting the block for its full length and. platform is automatically tilted so that the rear i t in predetermined spaced relation to the portion of the under face of the block clears the grooved face thereof'to remove a strip constitutcutters. ing a shingle having a grooved surface formed This tilting is effected by the front end of the by th Said grooved face of t b1ock block engaging the nose 22 of link 24, which has I a shoulder 26 supporting the platform, and when the block moves the nose and the link the platform drops or tilts on its fulcrum raising the after end of the block. The rotary collar 28 has a cam LEE B. DENNISON.

References Cited in the file of this patent UNITED STATES PATENTS has slid onto conveyor belt 32 and the spring Number Name e 34 assures the supporting engagement of the plat- 1,677,822 u d y 92 form and shoulder. 1683,751 A b tt Sept. 11, 1928 Belt 32 carries the block to the chains 35 hav- 1, 20,841 Jones July 16, 1929 ing teeth 36 which move the block against the 1, 76,171 Hutchings Oct. 9, 1934 By utilizing my method of grooving first and. 

